N reg Renault Laguna, running hot , can any one help? no match in the petrol tank jokes please so boring! .?
this is a problem as i use the car and if i get stuck in traffic i dont want to bugger the head up on it, of which there are no visible signs of leakage, there is no contamination in the oil or water, so i am at a loss,
would a compression test shed any clues ?
Answers:
compression check will tell you that cylinder is sealing properly & from what you say dose not sound like head gasket.Renault electrics are quite tempremental,before you change anything get an earth lead from the battery straight to the engine as this is often degrades giving high resistence and temp sensor goes barking mad.If that does not work then look at changing temp sensor then thermostate.
bad sensor or thermastat
it could be your themostack and a compression test would not solve the problem
maybe its the fan not enought air going throught the engine get it checked out asap
Compression test is easy, as is changing the thermostat.
Worth draining all the coolant and try again with new anti-freeze.
Rule out the easy stuff first. Head gasket may show as bubbles in the reservoir !
Sound like the electric fan is not switching on or the radiator is blocked.
Try flushing the cooling system with Rad flush, remember to replace the anti freeze though.
The electric couling fan or sensor is faulty
these cars are prone to head-gasket failier,
having an alloy head, there usually ok until the block heats up causing the head to expand and over heat?
hope this helps?
ty.
I`m a car mecanics since 1980,fron brazil south america.meny of the answers that u have is trusth, but the best thing to do .take the car to your mecanics. because this can came to be very siriosly, be carfully. may guive you an espencive solution if it takes to long.see you.
could be thermostate problems
replace this first run vehicle up to temperature & check the electric fan is working correctly
The answers post by the user, for information only, UKQnA.com does not guarantee the right.